Developer surface

Give your AI a human economic layer.

Use Runtime to buy a reliability target or search verified human capability and licensed asset catalogs directly. Human work is asynchronous and durable.

Create developer workspace

Human Verify · standard x402

Independent human judgment for uncertain machine output

Read the public contract, POST the candidate and criterion, then let a standard x402 client handle the 402 payment challenge and PAYMENT-SIGNATURE retry. A 202 response returns your private status URL; poll it for the human result and proof.

No ME API key, ME SDK, or separate quote/challenge/execute sequence is required. Idempotency-Key is optional; preserve it if supplied. Keep payment authorizations and private result URLs confidential.

Human Verify contract, price, availability and examples

REST

Resolution API

Quote, fund, poll, report outcome, verify proof, and subscribe to signed webhooks.

MCP

Agent-native tools

Compare, verify, resolve, inspect capability supply, license assets, and poll durable tasks.

VALUE

Capability exchange

Machines discover anonymized verified supply while contributor identity remains private.

REST · compare

Create paid human demand

POST /api/v1/requests
X-ME-API-Key: me_live_...
Idempotency-Key: workflow-123

{
  "request_type": "compare",
  "prompt": "Which answer is clearer?",
  "options": ["Answer A", "Answer B"],
  "criteria": "Clarity and actionability",
  "capability_code": "general_ai_evaluation",
  "required_responses": 3,
  "target_reliability": 0.95,
  "max_latency_seconds": 300,
  "max_cost_cents": 500,
  "usage_permissions": {
    "purpose": "evaluation",
    "commercial_use": true,
    "model_training": false,
    "max_retention_days": 30
  }
}

MCP · capability discovery

Ask the market itself

{
  "method": "tools/call",
  "params": {
    "name": "me_catalog_human_capabilities",
    "arguments": {
      "capability_code": "language_context",
      "minimum_reliability": 0.90,
      "max_price_cents": 100
    }
  }
}

Durable agent flow

Pause, persist, resume

STEP 1

Agent encounters uncertainty

STEP 2

ME returns a durable request ID

STEP 3

Real humans complete the funded task

STEP 4

Webhook or polling resumes the agent

For Human Verify, the standard 402 response is the authoritative quote. Enforce your spending ceiling before signing and persist the private status URL from 202. Other Runtime integrations may use the separate quote tools shown above.

Machine-readable offer

{
  "capability": "language_context",
  "task_types": ["compare", "interpret"],
  "reliability_floor": 0.94,
  "min_pay_cents": 22,
  "target_latency_seconds": 300,
  "rights": {
    "commercial_use": true,
    "model_training": false,
    "retention_days": 30
  }
}

Outcome feedback

POST /api/v1/requests/{id}/outcome

{
  "final_answer": {"choice": "B"},
  "human_decision_accepted": true,
  "downstream_success": true
}

Outcome feedback—not reviewer agreement—is what calibrates the Human Frontier.